Mandragora

A monster born from human blood and semen; usually buried underground, she is able to sleep for decades at a time. Normally the photosynthesis from their leaves above ground is enough to sustain them.

Mandragoras are mostly harmless, staying underground. However, if they are forced out against their will, they will let loose a powerful shriek that paralyzes all living beings that hear it. Left in a bad mood, they will regularly attack whoever pulled them out. If it's a man they are sure to supplement their diet with his semen.

As a plant that's close to being human, Mandragora have female genitals that can be used for both feeding and reproduction. In addition, they are known to use their mouths and breasts to wring semen from their prey.

As they are generally harmless to humans, it's wise to be wary of pulling them from the ground.